body,
h1,
h2,
h3,
h4,
h5,
h6,
p,
ul,
ol,
li,
dl,
dt,
dd,
input {
    margin: 0;
    padding: 0;
}

* {
    box-sizing: border-box;
}

body {
    font: 16px/1.5 "Helvetica Neue", Helvetica, Arial, "Microsoft Yahei",
        "Hiragino Sans GB", "Heiti SC", "WenQuanYi Micro Hei", sans-serif;
    color: #333;
}

ul,
ol {
    list-style: none;
}